DIY-WB PCB LAYOUT ERROR!!!
rr
rrauscher at nni.com
Mon Dec 10 19:33:21 GMT 2001
I'm still at work, don't have a PCB here. However, if you
are measuring a connection between the junction of R37 and
C11 to the output of the 8 v reg, then there is most
likely
a solder short on the board.
I don't believe that the layout is incorrrect as there are
several of these units already in use. If you would double
check and get back to me I may be able to help further.
BobR.
On Mon, 10 Dec 2001 18:16:48 +0000
w.shawsr at att.net wrote:
>Wow, the only one who responded to my previous email was
>Peter, and he was so far off base I'd guess he didn't
>read my post completely.
>
>GUYS....THERE IS AN ERROR IN THE DIY-WB PCB LAYOUT!!!
>
>Could someone pick up an ohmmeter and verify this? Maybe
>even report back to the list???
>
>
>My previous post stated:
>
>I finally powered up my board and I've been poking around
>with a meter for an hour or so now. Things don't seem
>quite
>right. Maybe someone could shed some light?
>
>The schematic and the PCB don't seem to agree on Vgnd.
> The
>schematic shows the junction of R37 and C11 as being Vgnd
>but that trace on the PCB connects to the output of the 8
>volt regulator according to my ohmmeter, which would
>make
>that point +4V wrt Vgnd. Whatsupwiddat?
>
>Bill
>
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